# Fasting Tracker & Timer App vs O'lin

The clearest difference is iOS requirement: Fasting Tracker & Timer App at 18 against O'lin's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Fasting Tracker & Timer App sells 3 in-app purchases, starting at $2.99 per month and O'lin sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Fasting Tracker & Timer App ships an update every 2 months, O'lin monthly. The most recent releases landed on September 30, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Fasting Tracker & Timer App | O'lin |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (9 ratings)](https://appshunter.io/ios/app/fasting-tracker-and-timer-app/id1528881343/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Freemium | — |
| Size | 23 MB | 3 MB |
| Requires iOS | **18** | 26.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [SleepyBytes SIA](https://appshunter.io/developer/537208079) | [Eduard Novohatsky](https://appshunter.io/developer/1814905516) |

## What reviewers say

### Fasting Tracker & Timer App

[App page](https://appshunter.io/ios/app/fasting-tracker-and-timer-app/id1528881343)

This app helps users implement intermittent fasting by supporting various popular fasting methods. It highlights the numerous health benefits associated with this eating pattern, including weight loss and improved cell repair.

**Highlights:** Supports popular fasting methods (18/6, 12/12), Highlights health benefits of fasting, Tracks eating and fasting periods, Beginner-friendly options, Promotes weight loss and fat reduction

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Annual | $12.99 | per year |
| Billed Once | $39.99 | one-time |


### O'lin

[App page](https://appshunter.io/ios/app/olin-intermittent-fasting/id6758303258)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| O’lin Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is Fasting Tracker & Timer App free?

Fasting Tracker & Timer App is free to download, with in-app purchases available.

### Is O'lin free?

O'lin is free to download, with in-app purchases available.

### Do Fasting Tracker & Timer App or O'lin have ads?

Neither Fasting Tracker & Timer App nor O'lin shows ads.

### Which is updated more often, Fasting Tracker & Timer App or O'lin?

Fasting Tracker & Timer App ships an update every 2 months, and O'lin monthly. Most recently, Fasting Tracker & Timer App was updated on September 30, 2026 and O'lin on October 7, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*